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v8/test/cctest/interpreter/bytecode_expectations/StaticClassFields.golden

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[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
#
# Autogenerated by generate-bytecode-expectations.
#
---
wrap: yes
---
snippet: "
{
class A {
a;
['b'];
static c;
static ['d'];
}
class B {
a = 1;
['b'] = this.a;
static c = 3;
static ['d'] = this.c;
}
new A;
new B;
}
"
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
frame size: 9
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
parameter count: 1
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
bytecode array length: 185
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
bytecodes: [
/* 30 E> */ B(StackCheck),
B(CreateBlockContext), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(PushContext), R(2),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaTheHole),
Reland "Reland "[runtime] Remove extension slots from context objects"" This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Victor Gomes <victorgomes@google.com> Cr-Commit-Position: refs/heads/master@{#64451}
2019-10-22 08:31:31 +00:00
B(StaCurrentContextSlot), U8(3),
Revert "Reland "[runtime] Remove extension slots from context objects"" This reverts commit c48096d44243c20842dd0e48d50b00bafe18ff93. Reason for revert: Flaky bot failures (https://bugs.chromium.org/p/v8/issues/detail?id=9744#c9) Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9744 Change-Id: Ia58067b41f1eb5880a52b36ead754d7190ff7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871922 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#64424}
2019-10-21 13:09:47 +00:00
B(LdaTheHole),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
B(LdaTheHole),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(6),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(CreateClosure), U8(2), U8(0), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(3),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(1),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(4),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 60 S> */ B(LdaConstant), U8(3),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(3),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(7),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 92 S> */ B(LdaConstant), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(5),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(TestEqualStrict), R(8), U8(0),
B(Mov), R(3), R(5),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Ldar), R(8),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(5),
B(Star), R(4),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(6), U8(1), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(5),
B(StaNamedProperty), R(3), U8(7), U8(1),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(8), U8(2), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(7),
B(CallProperty0), R(7), R(3), U8(3),
B(PopContext), R(2),
[scope] Add Scope::ForEach helper to avoid recursion Drive-by-fix: - Inline Scope::num_parameters - Provide inlineable DataGatheringScope destructor precheck Change-Id: I337a79e0d5cf0f26c526e2ac53de8aa632d86c53 Reviewed-on: https://chromium-review.googlesource.com/c/1445879 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#59253}
2019-01-31 15:36:58 +00:00
B(Mov), R(3), R(0),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
/* 38 E> */ B(CreateBlockContext), U8(9),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(PushContext), R(2),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaTheHole),
Reland "Reland "[runtime] Remove extension slots from context objects"" This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Victor Gomes <victorgomes@google.com> Cr-Commit-Position: refs/heads/master@{#64451}
2019-10-22 08:31:31 +00:00
B(StaCurrentContextSlot), U8(3),
Revert "Reland "[runtime] Remove extension slots from context objects"" This reverts commit c48096d44243c20842dd0e48d50b00bafe18ff93. Reason for revert: Flaky bot failures (https://bugs.chromium.org/p/v8/issues/detail?id=9744#c9) Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9744 Change-Id: Ia58067b41f1eb5880a52b36ead754d7190ff7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871922 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#64424}
2019-10-21 13:09:47 +00:00
B(LdaTheHole),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
B(LdaTheHole),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(6),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(11), U8(3), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(3),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(10),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(4),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 131 S> */ B(LdaConstant), U8(3),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(3),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(7),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 176 S> */ B(LdaConstant), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(5),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(TestEqualStrict), R(8), U8(0),
B(Mov), R(3), R(5),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Ldar), R(8),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(5),
B(Star), R(4),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(12), U8(4), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(5),
B(StaNamedProperty), R(3), U8(7), U8(5),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(13), U8(5), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(7),
B(CallProperty0), R(7), R(3), U8(7),
B(PopContext), R(2),
B(Mov), R(3), R(1),
[scope] Add Scope::ForEach helper to avoid recursion Drive-by-fix: - Inline Scope::num_parameters - Provide inlineable DataGatheringScope destructor precheck Change-Id: I337a79e0d5cf0f26c526e2ac53de8aa632d86c53 Reviewed-on: https://chromium-review.googlesource.com/c/1445879 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#59253}
2019-01-31 15:36:58 +00:00
/* 197 S> */ B(Ldar), R(0),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
/* 197 E> */ B(Construct), R(0), R(0), U8(0), U8(9),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
/* 206 S> */ B(Ldar), R(1),
/* 206 E> */ B(Construct), R(1), R(0), U8(0), U8(11),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaUndefined),
/* 215 S> */ B(Return),
]
constant pool: [
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
FIXED_ARRAY_TYPE,
SHARED_FUNCTION_INFO_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["b"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["d"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["prototype"],
SHARED_FUNCTION_INFO_TYPE,
SYMBOL_TYPE,
SHARED_FUNCTION_INFO_TYPE,
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
FIXED_ARRAY_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
]
handlers: [
]
---
snippet: "
{
class A extends class {} {
a;
['b'];
static c;
static ['d'];
}
class B extends class {} {
a = 1;
['b'] = this.a;
static c = 3;
static ['d'] = this.c;
foo() { return 1; }
constructor() {
super();
}
}
class C extends B {
a = 1;
['b'] = this.a;
static c = 3;
static ['d'] = super.foo();
constructor() {
(() => super())();
}
}
new A;
new B;
new C;
}
"
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
frame size: 12
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
parameter count: 1
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
bytecode array length: 334
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
bytecodes: [
/* 30 E> */ B(StackCheck),
B(CreateBlockContext), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(PushContext), R(3),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaTheHole),
Reland "Reland "[runtime] Remove extension slots from context objects"" This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Victor Gomes <victorgomes@google.com> Cr-Commit-Position: refs/heads/master@{#64451}
2019-10-22 08:31:31 +00:00
B(StaCurrentContextSlot), U8(3),
Revert "Reland "[runtime] Remove extension slots from context objects"" This reverts commit c48096d44243c20842dd0e48d50b00bafe18ff93. Reason for revert: Flaky bot failures (https://bugs.chromium.org/p/v8/issues/detail?id=9744#c9) Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9744 Change-Id: Ia58067b41f1eb5880a52b36ead754d7190ff7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871922 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#64424}
2019-10-21 13:09:47 +00:00
B(LdaTheHole),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
B(LdaTheHole),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(Star), R(11),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CreateClosure), U8(3), U8(0), U8(2),
B(Star), R(8),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(9),
B(Mov), R(8), R(10),
B(CallRuntime), U16(Runtime::kDefineClass), R(9), U8(3),
B(Star), R(9),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(CreateClosure), U8(4), U8(1), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(4),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(1),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(5),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 77 S> */ B(LdaConstant), U8(5),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(3),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 109 S> */ B(LdaConstant), U8(6),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(9),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(7),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(TestEqualStrict), R(9), U8(0),
B(Mov), R(10), R(7),
B(Mov), R(4), R(6),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Ldar), R(9),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(5),
B(Star), R(5),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(8), U8(2), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(6),
B(StaNamedProperty), R(4), U8(9), U8(1),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(10), U8(3), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
B(CallProperty0), R(8), R(4), U8(3),
B(PopContext), R(3),
B(Mov), R(4), R(0),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
/* 38 E> */ B(CreateBlockContext), U8(11),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(PushContext), R(3),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaTheHole),
Reland "Reland "[runtime] Remove extension slots from context objects"" This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Victor Gomes <victorgomes@google.com> Cr-Commit-Position: refs/heads/master@{#64451}
2019-10-22 08:31:31 +00:00
B(StaCurrentContextSlot), U8(3),
Revert "Reland "[runtime] Remove extension slots from context objects"" This reverts commit c48096d44243c20842dd0e48d50b00bafe18ff93. Reason for revert: Flaky bot failures (https://bugs.chromium.org/p/v8/issues/detail?id=9744#c9) Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9744 Change-Id: Ia58067b41f1eb5880a52b36ead754d7190ff7f6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871922 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#64424}
2019-10-21 13:09:47 +00:00
B(LdaTheHole),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
B(LdaTheHole),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(Star), R(11),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CreateClosure), U8(14), U8(4), U8(2),
B(Star), R(8),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(13),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(9),
B(Mov), R(8), R(10),
B(CallRuntime), U16(Runtime::kDefineClass), R(9), U8(3),
B(Star), R(9),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(15), U8(5), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(4),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(12),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(5),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 165 S> */ B(LdaConstant), U8(5),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(3),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 210 S> */ B(LdaConstant), U8(6),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(9),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(7),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(TestEqualStrict), R(9), U8(0),
B(Mov), R(4), R(6),
B(Mov), R(10), R(7),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Ldar), R(9),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(16), U8(6), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(10),
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(6),
B(Star), R(5),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(17), U8(7), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(6),
B(StaNamedProperty), R(4), U8(9), U8(5),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(18), U8(8), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
B(CallProperty0), R(8), R(4), U8(7),
B(PopContext), R(3),
[scope] Add Scope::ForEach helper to avoid recursion Drive-by-fix: - Inline Scope::num_parameters - Provide inlineable DataGatheringScope destructor precheck Change-Id: I337a79e0d5cf0f26c526e2ac53de8aa632d86c53 Reviewed-on: https://chromium-review.googlesource.com/c/1445879 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#59253}
2019-01-31 15:36:58 +00:00
B(Mov), R(4), R(1),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
/* 122 E> */ B(CreateBlockContext), U8(19),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(PushContext), R(3),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaTheHole),
Reland "Reland "[runtime] Remove extension slots from context objects"" This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 Original change's description: > Reland "[runtime] Remove extension slots from context objects" > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > Original change's description: > > [runtime] Remove extension slots from context objects > > > > Context objects have an extension slot, which contains further > > additional data that depends on the type of the context. > > > > This CL removes the extension slot from contexts that don't need > > them, hence reducing memory. > > > > The following contexts will still have an extension slot: native, > > module, await, block and with contexts. See objects/contexts.h for > > what the slot is used for. > > The following contexts will not have an extension slot anymore (they > > were not used before): script, catch and builtin contexts. > > Eval and function contexts only have the extension slot if they > > contain a sloppy eval. > > > > Bug: v8:9744 > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64372} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64380} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Victor Gomes <victorgomes@google.com> Cr-Commit-Position: refs/heads/master@{#64451}
2019-10-22 08:31:31 +00:00
B(StaCurrentContextSlot), U8(3),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(LdaTheHole),
B(StaCurrentContextSlot), U8(4),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
/* 313 E> */ B(CreateClosure), U8(21), U8(9), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(4),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(20),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(5),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 333 S> */ B(LdaConstant), U8(5),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(3),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
[class] Make class field initializers breakable in the debugger Add tests. Bug: v8:5367 Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel Change-Id: I2a4215a87ba1dae98c4b25547494165f534b4a66 Reviewed-on: https://chromium-review.googlesource.com/1218046 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#55974}
2018-09-17 21:46:39 +00:00
/* 378 S> */ B(LdaConstant), U8(6),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(9),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaConstant), U8(7),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(TestEqualStrict), R(9), U8(0),
B(Mov), R(4), R(6),
B(Mov), R(1), R(7),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Ldar), R(9),
Revert "Reland "Reland "[runtime] Remove extension slots from context objects""" This reverts commit 392a1217dea6374314c496d09ccecfc7e9fc19fc. Reason for revert: Several failures on mac64 gc stress: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/9747 Original change's description: > Reland "Reland "[runtime] Remove extension slots from context objects"" > > This is a reland of c48096d44243c20842dd0e48d50b00bafe18ff93 > > Original change's description: > > Reland "[runtime] Remove extension slots from context objects" > > > > This is a reland of c07c02e1c48d7039b2b6eb758bca4588dc372654 > > > > Original change's description: > > > [runtime] Remove extension slots from context objects > > > > > > Context objects have an extension slot, which contains further > > > additional data that depends on the type of the context. > > > > > > This CL removes the extension slot from contexts that don't need > > > them, hence reducing memory. > > > > > > The following contexts will still have an extension slot: native, > > > module, await, block and with contexts. See objects/contexts.h for > > > what the slot is used for. > > > The following contexts will not have an extension slot anymore (they > > > were not used before): script, catch and builtin contexts. > > > Eval and function contexts only have the extension slot if they > > > contain a sloppy eval. > > > > > > Bug: v8:9744 > > > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > > > Commit-Queue: Victor Gomes <victorgomes@google.com> > > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > > Cr-Commit-Position: refs/heads/master@{#64372} > > > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > > > Bug: v8:9744 > > Change-Id: I0749cc2d8f59940c25841736634a70047116d647 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192 > > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Commit-Queue: Peter Marshall <petermarshall@chromium.org> > > Auto-Submit: Victor Gomes <victorgomes@google.com> > > Cr-Commit-Position: refs/heads/master@{#64380} > > TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org > > Bug: v8:9744 > Change-Id: I621ffe98722f8c4defaf277b8d1666484ba2963f > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872400 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Commit-Queue: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64451} TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com Change-Id: I99a71180c6a00a87478867a8210ff9ceb46cb3ee No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9744 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1872405 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64453}
2019-10-22 09:47:12 +00:00
B(StaCurrentContextSlot), U8(4),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(5),
B(Star), R(5),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(22), U8(10), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(6),
B(StaNamedProperty), R(4), U8(9), U8(9),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
B(CreateClosure), U8(23), U8(11), U8(2),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
B(Star), R(8),
B(Ldar), R(4),
B(StaNamedProperty), R(8), U8(24), U8(11),
B(CallProperty0), R(8), R(4), U8(13),
B(PopContext), R(3),
B(Mov), R(4), R(2),
[scope] Add Scope::ForEach helper to avoid recursion Drive-by-fix: - Inline Scope::num_parameters - Provide inlineable DataGatheringScope destructor precheck Change-Id: I337a79e0d5cf0f26c526e2ac53de8aa632d86c53 Reviewed-on: https://chromium-review.googlesource.com/c/1445879 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#59253}
2019-01-31 15:36:58 +00:00
/* 456 S> */ B(Ldar), R(0),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
/* 456 E> */ B(Construct), R(0), R(0), U8(0), U8(15),
[scope] Add Scope::ForEach helper to avoid recursion Drive-by-fix: - Inline Scope::num_parameters - Provide inlineable DataGatheringScope destructor precheck Change-Id: I337a79e0d5cf0f26c526e2ac53de8aa632d86c53 Reviewed-on: https://chromium-review.googlesource.com/c/1445879 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#59253}
2019-01-31 15:36:58 +00:00
/* 465 S> */ B(Ldar), R(1),
Allocate feedback cells in an array decoupled from other slots This is a pre-work for allocating feedback vectors lazily. Feedback cells are required to share the feedback vectors across the different closures of the same function. Currently, they are held in the CreateClosureSlot in the feedback vector. With lazy feedback vector allocation, we may not have a feedback vector. However, we still need a place to store the feedback cells, so if feedback vector is allocated in future it can still be shared across closures. Here is the detailed design doc: https://docs.google.com/document/d/1m2PTNChrlJqw9MiwK_xEJfqbFHAgEHmgGqmIN49PaBY/edit BUG=v8:8394 Change-Id: Ib406d862b2809b1293bfecdcfcf8dea3127cb1c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1503753 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#60147}
2019-03-08 14:57:54 +00:00
/* 465 E> */ B(Construct), R(1), R(0), U8(0), U8(17),
[class] implement static private methods This patch refactors the declaration and allocation of the class variable, and implements static private methods: - The class variable is declared in the class scope with an explicit reference through class_scope->class_variable(). Anonymous classes whose class variable may be accessed transitively through static private method access use the dot string as the class name. Whether the class variable is allocated depending on whether it is used. Other references of the class variable in the ClassLiteral AST node and the ClassInfo structure are removed in favor of the reference through the class scope. - Previously the class variable was always (stack- or context-) allocated if the class is named. Now if the class variable is only referenced by name, it's stack allocated. If it's used transitively by access to static private methods, or may be used through eval, it's context allocated. Therefore we now use 1 less context slots in the class context if it's a named class without anyone referencing it by name in inner scopes. - Explicit access to static private methods or potential access to static private methods through eval results in forced context allocation of the class variables. In those cases, we save its index in context locals in the ScopeInfo and deserialize it later, so that we can check that the receiver of static private methods is the class constructor at run time. This flag is recorded as HasSavedClassVariableIndexField in the scope info. - Classes that need the class variable to be saved due to access to static private methods now save a ShouldSaveClassVariableIndexField in the preparse data so that the bits on the variables can be updated during a reparse. In the case of anonymous classes that need the class variables to be saved, we also re-declare the class variable after the reparse since the inner functions are skipped and we need to rely on the preparse data flags to remember declaring it. Design doc: https://docs.google.com/document/d/1rgGRw5RdzaRrM-GrIMhsn-DLULtADV2dmIdh_iIZxlc/edit Bug: v8:8330 Change-Id: Idd07803f47614e97ad202de3b7faa9f71105eac5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781011 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64219}
2019-10-10 14:33:02 +00:00
/* 474 S> */ B(Ldar), R(2),
/* 474 E> */ B(Construct), R(2), R(0), U8(0), U8(19),
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
B(LdaUndefined),
/* 483 S> */ B(Return),
]
constant pool: [
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
FIXED_ARRAY_TYPE,
FIXED_ARRAY_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["b"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["d"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["prototype"],
SHARED_FUNCTION_INFO_TYPE,
SYMBOL_TYPE,
SHARED_FUNCTION_INFO_TYPE,
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
FIXED_ARRAY_TYPE,
FIXED_ARRAY_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
[runtime] Add SCOPE_INFO_TYPE InstanceType Bug: v8:7310 Change-Id: I82e7ada4c0f7e415887a859719eb01bb45fd3012 Reviewed-on: https://chromium-review.googlesource.com/921742 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51324}
2018-02-16 12:36:47 +00:00
SCOPE_INFO_TYPE,
[class] Split out static fields into a separate flag This patch implements https://github.com/tc39/proposal-class-fields/pull/65 and https://github.com/tc39/proposal-static-class-features/ by splitting out instance and static field declarations into separate flags for the separate proposals. Instance class fields is currently at Stage 3 whereas static class fields is currently at Stage 2. Bug: v8:5367 Change-Id: I133c945fd0b22dc5718c7bb61b10f22348087acd Reviewed-on: https://chromium-review.googlesource.com/839778 Commit-Queue: Daniel Ehrenberg <littledan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#50293}
2017-12-21 17:58:28 +00:00
FIXED_ARRAY_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
SYMBOL_TYPE,
]
handlers: [
]
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